RC CANARD PLANE

canard plane

Canard is  an  airframe configuration of fixed wing  aircraft in   which  the   forward  surface  is smaller than the rearward, the former being known as the "canard", while the latter is the main wing. In    contrast   a    conventional   aircraft   has    a small horizontal stabilizer behind the main wing.

Canard designs fall into two main classes:-

a) Lifting canard:- In this configuration, the weight of the aircraft is shared between the main wing and the canard wing.

b)  Control  canard:-  most  of  the  weight  of  the aircraft is carried by the main wing and the canard wing  is  used  primarily  for  longitudinal  control during maneuvering.

The pros and cons of the canard versus conventional configurations are numerous and complex and it is impossible to say which is superior without considering a specific design application.

Various Parameters involved in the design of Canard Plane:-

1) Both canard and main wings should be of high aspect ratio. The canard should have higher aspect ratio than the main wings.

2) The airfoil section of the canard wings should stall before the main wings.

3) The area of the canard wings should be 20% to 40% of the main wings.

4) keep the distance between the canard wings and the main wings as long as possible.

5) The balance or the centre of gravity should be just ahead of the main wings.

Measurements of our plane

Ø Length of fuselage: 36 inches

Ø Wing span

1) Canard wings: 18 inches

2) Δ wings: 36 inches

Ø Chord length of canard wings: 2.5 inches

Ø Aspect ratio

1) Canard wings: 7.2

2) Δ wings: 6

Ø Wing area:

1) Canard wings: 45 sq inches

2) Δ wings: 216 sq inches

Ø Height of vertical stabilizer: 8 inches

Ø Length of ailerons: 15 inches

Materials required:

 Corofoam

 Styrofoam

 Biofoam

 Carbon rods

 Balsa wood

 Servo motors

 Brushless motor

 Push rods

 ESC

 Battery

 Reciever

 Polythene sheet

 Glueing material-cellotape, gluegun, bondtite, bondquick, etc.

PROCEDURE:-

 Construction of fuselage using coroplast.

 Designing   and    giving shape to     the     fuselage nose made up of Styrofoam.

 Construction of canard wings using biofoam.

 Construction     of       main  wings          using biofoam.

They are delta shaped wings and require fine tapering to reduce air drag.

 Construction     of       ailerons       and    giving them proper airfoil shape.

 Strengthening of the main wings using carbon rod.

 Making of the vertical stabilizer     and    rudder using thick corofoam.

 Covering the main wings with tight polythene sheet to provide airfoil shape.

 Mounting of  canard wings,  main  wings and vertical stabilizer.

 Mounting  of       the     servo motors on   the     wings, rudder and fuselage.

 Mounting  the main brushless motor at the back to provide thrust to the plane.

 Placing the ESC , battery and receiver.

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